In Business Continuity Manager, when a pair in DUPLEX status is suspended to the S-VOL, the status of the P-VOL becomes Suspend and the F/M = FB message is output to the host connected to the primary system. You are able to stop output of the message by setting system option mode 776.
However, the F/M = FB message is output even with system option mode 776 = ON when the pair status is Suspend due to failure. Also, if PPRC support by host = No is selected, the F/M = FB message is not output regardless of the mode 776 setting.
The following table shows the conditions when the F/M=FB message is output (Yes) or stopped (No).
Cause of P-VOL suspend |
Settings |
|||
|---|---|---|---|---|
SOM 776 = ON |
SOM 776 = OFF |
|||
PPRC support by host = Yes |
PPRC support by host = No |
PPRC support by host = Yes |
PPRC support by host = No |
|
Suspended by suspend operation from BCM to S-VOLs |
No |
No |
Yes |
No |
Suspended by failure |
Yes |
No |
Yes |
No |